Double-end bag-turning machine



Aug. 10 1926. 1,595,647

l L. J. CONTRESSIA nouLB END BAG TURNING men-ms Filed July 24, 1925 2Sheets-sheet 1 Aug. 10, 1926. I 1,595,647

l.. J. coNTREssA DOUBLE END BAG TURNING MACHINE 3 INVENToR Lamlbinre/95a.

ATTORN EY Patented Aug. 130, 1926. Y

narran STATES i Y 1,595,647 PATENT VoFFlCE.v

LOUIS J COIVIRJFJSSA,v OF BROOKLYN, NEW YORK, ASSIGNOR T0 STERLING :BAGCOM- PANY, INCORPORATED, .A CORPORATION 0F NEW YORK. A

DOUBLE-'END BAG-TURNING MACHINE.

Application led July 24, 1925. Serial No. 45,838.

This invention relates to a double end bag turning machine. v f rllheobject of the invention is the production of a bag turning machine, withwhich bags can be turned outside in or vice versa by mechanism at bothof its ends. lA second. object of the invention is the production of amachine 1n which the essential, elements thereof are adjustable.` AThethird object of the invention is the production of a machine for turninbags which is composed of simple parts tiat can be easily repaired orreplaced.

The organization of the invention com? vides two adjustments for themovements vof the turning rods. v e

Fig. l represents a side elevation of an exempliiication of the doubleend bag turn* ing machine; Fig. 2 shows a topplan view of Fig. lwithsome parts removed; Fig. 3 lis an enlarged section of Fig. l on the line3, 3;

' Fig. 4 .indicates an enlargedfragmentary portion ofFig. 1;' Fig. 5 isa top plan view of Fig. 4 and Fig. 6 is a section of Fig. 4 on the line6, 6. Y The improved double end bag turning machine is shown in thisinstance to comprise a pair of end frames,shown in their entiretiesrespectively at A and B, connected by the runway frame designated in itsentirety byy the letter C.

`The frames A and AB eachconsist of the vertical corner posts 2O and 2l,connected by the upper r'side beams 22 and 23, and the kupper crossbeams 24 and 25.

' between the lower portions of the posts 30,'

j 'The Cornerf posts are connected `by the lower side beamsv 3l and thecorner posts 2l. Cross tie bolts 34l extend through the posts 21, 30 and31.

The runway frame comprises the two upper longitudinal beams 38preferably of metal, which extend betweenand are connected to the crossbeams 25,v and the lower longitudinal beam 39 which extends between andis connected to the cross pieces 32.

Brackets 42 extend lup from the beams 38v and support the lfeed table43. The bags to be turned are located one over the other on the table43. f v

Brackets 50 extendV up from the side beams 22 and 23 of the frameA, Anoscillating shaft 5l is supported in the upper portions of the brackets50, and a second oscillating shaft 52 is supported in said brackets 50be,- lowjthe shaft 5l. Brackets 53 are fastened to the shaft 5l and haveinv turn fastened thereto the U shaped bag supporting bracket- 54.Brackets 55 similar Ato 53are fastened tothe shaft 52,v and have eachextending therefrom aD shaped arm 5.6. arm. 59 extends from the shaft5l, a rod-,60Vhas oneI end pinned to the arm 59 and its vo ther endextends through an opening in the guide bracket 6l extending from thebeam 23, of the frame A. A springr 63 encircles the link with one endfastenedvthereto and its other end bears on the bracket 6l. An arm 65has one endfastened to the lshaft 52. A`

connecting rod 66 with the enlarged portion 67,.has the upper end of thelatter pinned to thearin 65. upper end fastened tol the beam 22 and atits lower end is 'formed a Hange 72. The

latter has an opening through which ex-LV tendsthe connecting'rod 66. Aspring 7 3 extends between the enlarged portiony 671of the rod 66 andthe flange 72. A bracket 74 extends from one of the posts 2l of theframe A and has extending therefrom a pin 7 5. The lever 76j has pivotedto one end the lower end of the connecting rod 66, and to the other endis journaled the roller 7 .7 y

A driving shaft 78 has one end journaled in the journal bracket 79Lextending from one of the posts*A 21 of the frame A. AjournalbracketvSO withthe journal bearings 8l and 82, extends from theVpost 31`ofv the frame A. The other end of the shaft 78 is journaled inthe bearingSl. A pulley 83 is A bracket 7l has its To the latter ispivotcd the lever 76'.v

lOl

yfastened to one end ofthe shaft 78., and a pinion 84 is fastened to theother end of the said A bevel pinion 85 is alsofastened to the shaft 78.A journal bracket is fastened to the post 21 of the frame A, and ajournal bracket 87 is fastened to the post 31 of the frame A. A shaft 90is journaled in the journal brackets 86 and 87. A spur gear 91 isfastened to the shaft 90 and meshes with the pinion A connecting rod 95has one end pivoted to the spur gear 91 by means of the pin 96. Cams 97"and 98 are fastened to the shaft 90. r1`he cam 97 coacts with the roller77 of the lever 76. l A lever is pivoted on the pin 7 5. A bracket 101has one end fastened to the lever 100. A rope 102 has one end fastenedto the lower end of the bracket k101. A roller 108 is j'ournaled to thelever 100 and coactswith the cam 98. A pair of similar journal brackets104, each with an elongated slot 105 are adjustably fastened to thebeams 22 and 23 by the bolts 106. ylhe brackets 104 have supportedtherein' the oscillating shafts 108 and-109. A lever with the arms 110and 111 is fastened to the shaft 108. rlhe roper 102 has .one endfastened to the arm 110. A spring 114 has one end fastened to the arm111V and itsother end is fastened to the bracket 115 extending from thebeam 22 of the frame A. A segmental gear 116 is fastened 4to theoscillating shaft 108, and a segmental gear 117 is 'fastened to theoscillating shaft 109, and the teeth of the latter mesh with the teethof the former. A pair of clamping fingers 118 extend from the shaft 108and a pair of coacting clamping fingers 119 extend from the Shaft 109. l

To the post 30 of the frame B is fastened the journal bracket 124 withthe journal bearings 125 and 126 and to one of the posts 21 of the frameB is fastened the journal bracket 128. A shaft is journaled in thejournal bracket 128 and in the journal bearing 125.

' A bevel gear 132, is fastened to the shaft 130. An inclined shaft 133has its ends j-ournaled in the journal bearings 82 and 126. A bevel gear134 is fastened to one end of the shaft 133 and meshes with the bevelpinion 85, and abevel pinion 135 fastened to the other end of the shaft133 mesheswith the bevel gear 132.

To one of the posts 21 of the frame B is.

bracket similar to 74 and from which extends the pin 141. To the shaft130 is fastened a'cam 142 similar to 97. To one end of the pin 141 islfastened the lever 143 imilar to 76. The lever 143 has journaled to oneend thereof the roller 144 which coacts with the cam 142. A pairfastened the of brackets 147 similar to 50 are supported upon andfastened to the beams 22 and of the frame B, and have supported thereinthe oscillating vshafts 148 and mo respectively similar to the shafts 51and 52. Brackets 153 similar to 53 are fastened to the shaft 148 andhave in turn fastened thereto the U shaped supporting bracket 154similar to 54. Brackets 155. similar to 55 are fastened to the shaft149, and each have extending therefroma shaped arm f' An arm 159 similarto 59 extends from the shaft 148, and a rod similar to 6.0 has `one endpinned to the arm 159, and its other end extends through an opening inthe guide bracket 161 extend-- ing from the beam 22 of the frame B Aspring 163 similarto 63 has one end fastened to the rod 160 and itsother end bears on the bracket 161. An arm 165 has one end fastened tothe shaft 149. A connecting rod 166 similar to 66 with the enlarged end167 has its upper end pinned to the arm 165. A bracket 171 similar to 71has its upper end fastened to the `beam 23 rof the vframe B, and to itslower end is formed the flange 172 similar' to 72. The flange 172 has anopening through which extends the connecting rod 166. A spring 17 3similar to 73 extends between the enlarged end 167 Vof the rod 166 andthe flange 172. The lower end of the latter connecting rod is pivotedto` the lever 143. f

To the pin 141 is fastened the lever'180V similar to 1007 to one end ofwhich is journaled the roller 183 similar to 103. A cam 184 similar to98 is fastened to Athe shaft and coacts with the roller 183. A bracket185 extends from the lever 180. A rope similar to 102 has one endfastened to the lower end of the bracket 185. Apair of adjustablejournal brackets 188, similar to 104- have supported therein theoscillatingshafts 199 and 200, similar to 108 and 109. A le-y ver withthe arms 210 and 211, is fastened to the shaft 199. rllie rope 186 hasone end fastened to the arm 210. A spring 214 similar to 114 has oneend'fastened to the arm 211, and its other end is fastened to 'thebracket 215 extending from the beam 22 of the frame B. A segmental gear216 similar to 116 is fastened to the oscillating shaft 199, and asegmental gear 217 is Vfastened to the oscillating shaft 200.l y1`heteeth of the latter mesh with the Yteeth of the segmental gear 216. Apair of clamping fingers 218 extend from the shaft 199 and a pair ofclamping fingers 219 extend from the shaft 200. Y l

A pair of guide rods 220Ye:;tend`thrrough and have their ends supportedVin the cross' beams 25 of the frames A and B. A cross` head isdesignated :in its entirety by the numeral 225. The cross head comprises.the

bottom plate 226 from which extend theV guide lugs 227, with openingsthat engage the guide rods 220. A pair of Vlugs -228 extend from the.lower face of theplate Y2.26..v

End walls 229-extend up'from .the bottom j the frameV B.

plate 226 and haveformed therewith the top plat-e 236. A pair of-bellcrank leveis are each designated at D and a second pair are designatedat E. lEach bell crank lever comprises the members 235 and 236. Each ofthe members 236 are pivoted to the top platef230 by means of a screwpivot 237. In each of the members 235 is formed an elongated guideopening 238, in which latter is adjustably supported the threaded shank239 ofthe pivot 240, by means of the .nuts 241. Rollers 2112 areiournaled on the pivots 240. To. each of the bell crank levers D and Eis fastened aclaniping bracket 2115. Each pair of said bell crank leversis Vconnected by a spring 246. A guide plate 248 for each pair of bellcranks D and E extends from the top plate 230.

To the beams 39 is fastened a bracket 250,

in which is pivoted the lower end of the link 251. A link 252 is pinnedto the upper end of the link 251, and is in turn pinned to the lugs228of the cross head 225. The connecting rod 95 is pinned to the link251 by means of the pin 253.

vnthe upper faces of the longitudinal beams 38 which are preferably ofmetal, are formed ydove-tail guide openings Vfor the dove-tail supports258. Each support 258 has extending therefrom a threaded shank 259. Theouter side faces of the beam 38 have fastened thereto the U shapedbrackets 260, ,whichhave openings for the Shanks 259. .Nuts on theslianks 259 enables them' to be clamped in different positions, to varythe location of the dovetail supports in their guide openings. T` shapedtracks 262 which converge toward their central portions 263,are-fastened to the supports 258. Each of the tracks is preferablystraight for a short length at its central portion 263 as shown. Therollers 2112 -bearagainst the outer faces of the vertical members of theT shaped tracks 262. Turning rods 268, 269 are de- 1 tachably connectedto the clamping brackets 2st-5 of the'bell crank levers D, and 'turningrods 270 and 271 are detachably connected to the clamping brackets ofthe bell crank levers E. A receiving table 275 is located within theframe A and an inclined chute plate 276 has its upper end fastened vtothe posts 30 and 31 of said frame. A receiving table 285 with Vits chutepiate 286 respectively similar to 275 and To operate Vthe doubleAend'bag turning machine, it is started by turning thepulleyj 83 by abelt not shown, and the bags which.

have been previously turned inside outV in Vthe courseof,theirmanufacture are located one over the other uponY the feed tableL13. One of the bags is indicated at 288 (F ig. 1)

with its open end 288a and its bottom end 2881, Vwhich the operator hasremoved from the table 4:3, with its open end 288a engaged 2,76areprovided forV by the U shaped bag supporting bracket 54 and the .Dshaped arms 56 of the frame A. The arms 56 when the open endpof the bagis engaged thereby lare adjacent to the sup# porting bracket 5L1,andwwith the turning of the shaft 90, the. coaction ofthe cani 97,-t/helever 76, the connecting rod 66, the spring 73, the arm 65 and the,oscillating shaftA 52,

the arms 56 are' swung down and open the.

open end 288a ofthe bag. To prevent injury to the open end of the bag bythe swingingA down ofl-the'l` shaped arm 56, the U shaped supportingbracket 54 swings down somewhat by i-easonfof the openiend of .the bagbearingthereon. The supporting ,bracket 54 swings down against thetension of the spring 63. The object of `making the arins 56 D shaped istov allow the turning rods 268 and 269 to clear them as they enter thebag.

The rotations of the spur gear 91 with the shaft 90, through theconnecting rod95,

swings the link 251 and thereby the cross head 225 slides toward therbagand thev turning rods 268 and 269 engage the lower member of the openend of the bag, and turn it from its outside to its inside,an`d locateits closed end 288 betweenv 4the clamping fingers 118V and 119, asindicated in the frame B for another bag. While the turning rods 268rand 269 are moving to turn the' bags, their outer ends 2889A graduallyspread, to laterally open the bag. The turningrods 268 and 269 arespaced by the coaction of the'fv rollers 242 with 'the` T" shapedtracks,262.

The rollers 242 bear against said tracks 262l and swing the bell cranklevers D, whichk latter swing tlievsaid turning rods as they AfterVthe.l

through the coaction ofthespring `114 withk the arm111. lvhen thebottomend ofthe bag is clamped by the clamping lingers 118 and 119, thecross head 225 recede-s from the. turned over Vbag and theturningfrods268 and 269 are withdrawn.,tlierefroinand are located in their initialposition as indicated in Figs. 1 Vand 2." Next the vclamping fingersother are deposited upon the ,receivingV table 275.7 v. Y i

The operations of the bag turning appurtenances associated with theframe B are the sameasdescribed for the frame A. i

It will bel notedy however that when the The oscillations of the shaft108 are iis ` 1 18 and 119 open and the -bags one aftertheV eoi turningrods 268 and 269 associated with the frame A. begin turningl one of thebags, the clamping fingers 218 and 219 release the that has been turnedk,by the turning rods 270 and 271 of the frame I3 and are dropped uponthe receiving table 285 of the frame I3. In other words theappurtenances associated with both pairs of the turning rods 268, 269and 270, 271 are continuously operating. Various modifications may bemade in the invention and the present exemplification is to be taken asillustrative and not limitative thereof.

Having described my invention what I 'desire to secure by Letters Patentand claim l. In a bag turning machine the combination of a reciprocatingcross head, a pair of turning rods for the cross head, means tolaterally swing the turning rods as they reciprocate with the movementsof the cross head, means to support and spread the open end of each bagoperated upon an locate it in proper position for the turning rods toenter the same, a pair of shafts in the rachine, a pair of clamping'lingers extendingl from each shaft, a lever with a pair of armsextending from one of said shafts, an oscillating lever pivoted in themachine, a connection between said lever and one of said arms to swingthe latter and thereby one pair of said clamping fingers, a spring withone end thereof fastened to one of the arms of said lever and its otherend fastened in position in the machine, and a segmental gear on eachshaft, said gears meshing with each other.

' 2. In a bag turning machine the combination'of a reciprocating crosshead, a pair of turning rods carried by the cross head, means tolaterally swing the turning rods as they reciprocate with the crosshead, means to support and spread the open end of each bag operated uponand locate it in proper position for the turning rods, a pair of shaftssupported in the machine, a pair of clamping fingers extending from eachshaft, a lever with a pair of arms extending from one of said shafts, asecond lever pivoted in the machine, a cam rotating in the machinecoacting with the second lever to oscillate it, a connection between thesecond leverA and one of the arms of the first lever, a spring with oneend fastened to the other arm of the first lever and its other end fixedin the machine and segmental gearson the said oscillating shafts withtheir teeth meshing withv each other.

3. In a bag turning machine the combination of a reciprocating crosshead, a pair of bell crank levers with one member of each pivoted to thecross head, a pair of tracks in the machine, means to locate the tracksin di'erent operative positions, a roller connected tov the other memberof each bell crank lever bearing against one of Vsaid tracks, a turningrod carried by each bell crank lever, means to locate each bag operatedupon in proper' position for said turning rods and means to clamp thebottom or closed end of each bag after having been turned as described.

In a bag turning machine the combination of a reciprocating cross head,a pair of beil crank levers with one member of each pivoted to the crosshead, a runway frame cor-prising a pair of longitudinal beams in themachine, a plurality of supports slidably supported in each of saidbeams, means to clamp said supports in different positions, a rackfastened to the said supports of each beam of the runway frame, a rollerconnect ed to each other member of the bell crank levers bearing againstsaid tracks, means tolocate the open end of each bag operated upon inproper position for the turning rods and means to claiip the. bottom orclosed end of each of said bags after having been turned substantiallyas described.

In a double end bag turning machine the combination of a pair of endframes, a

runway frame interposed between said end frames, a reciprocating crosshead for the runway frame, two pairs of turning rods for the cross head,each pair of turning rods oppositely positioned to the other pair, meansto laterally swing each pair of turning rods as they reciprocate withthe cross head, a pair of oscillating shafts associated with each endframe, a pair of arms for one of said shafts, means to oscillate thelatter shaft, a supporting bracket for the shaft of said pair, means tomaintain the supporting bracket in tensional relation with said arms,said bracket and said arms adapted to open the open ends of the bagsoperated upon, a second pair of oscillating shafts associated with eachend frame, a pair of clamping vlingers for each of the latteroscillating shafts, segmental gears: interposed between each pair of thelatter oscillating shafts, a lever with a pair of arms for one' of theshafts of each latter pair, means to swing one of the arms of each ofsaid levers and means to maintain the other arm of each of the saidlevers in t'ensional relation with its other arm.

In testimony whereof I aflix my signature.

LOUIS J. CONTRESSA.

